The Law of Combining VolumesEd Vitz, John W. MooreA section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.

Gases

Two Balloons (GCMP)David M. WhisnantTwo Balloons: this is a resource in the collection "General Chemistry Multimedia Problems". In the Two Balloons video, the left flask contains some water and the right flask contains only air. What do you see when balloons are fastened to the mouths of the hot flasks? General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.

Gases

Inorganic Compounds of CarbonVolume 04, issue 12 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.

States of MatterAmerican Chemical SocietyACS Science for Kids activities explore phase changes of matter and their properties.

Gases |

Physical Properties |

Phases / Phase Transitions / Diagrams

Toys-ACS Science for KidsAmerican Chemical SocietyACS Science for Kids activities explore how chemistry can be used to make toys.

Gases |

Polymerization |

Water / Water Chemistry |

Physical Properties |

Lipids |

Reactions

Connected ChemistryMike StieffConnected Chemistry, a novel learning environment for teaching chemistry, is appropriate for use in both high school and undergraduate chemistry classrooms. Connected Chemistry comprises several molecular simulations designed to enable instructors to teach chemistry using the perspective of emergent phenomena. That is, it allows students to see observed macro-level chemical phenomena, like many other scientific phenomena, as resultant from the interactions of many individual agents on a micro-level. This perspective is especially appropriate to the study of chemistry where the interactions between multitudes of molecules on the atomic level give rise to the macro-level concepts that students study in the classroom. Connected Chemistry comprises molecular simulations embedded in the NetLogo modeling software (1). The collection contains several predesigned simulations of closed chemical systems to teach specific chemistry concepts. Currently, Connected Chemistry contains models for teaching Brønsted Lowry acid base theory, enzyme kinetics, radical polymerization, buffer chemistry, kinetics, chemical equilibrium, and crystallization. Instructors and students can individually tailor the predesigned simulations or generate new simulations as they are needed in the context of a particular lesson, classroom, or department.

Characteristics of MaterialsAmerican Chemical SocietyWhat makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.